I have a Homebrew formula that I wish to uninstall/remove along with all its dependencies, skipping packages whom other packages depend upon (a.k.a. Cascadi
Based on @jfmercer answer (corrections needed more than a comment).
Remove package's dependencies (does not remove package):
brew deps [FORMULA] | xargs brew remove --ignore-dependencies
Remove package:
brew remove [FORMULA]
Reinstall missing libraries:
brew missing | cut -d: -f2 | sort | uniq | xargs brew install
Tested uninstalling meld after discovering MeldMerge releases.